Trough-type oil burner with forced combustion air supply



Dec. 22, 1953 H. R. HARRIIS 2,663,366

TROUGH-TYPE 01L BURNER WITH FORCED COMBUSTION AIR SUPPLY Original FiledApril 22, 1947 Patented Dec. 2 2, 1953 1- *IBQUGHJTYPE 01L BURNER/WITHFORG COMBUSTION Am SUPPLY flemnapdt. Harris, fi s lein e wccdsn iieltsnbstitl lted for abandoned ppl cation A e22 1947, Seria-1 N0.=744,276.Divided and this apzplicationseptember 16, 1953, :SerialjNo. 38 3-,493

.6 cla ms (arise- 92 T is pp a i n s su sti uted .ior an a a ned pp catin Seria Ne. 7' .,276 fi: d:A r 22, 1947.-

!Ihi invention r la es t Qil rn e se w t in a fu nace, theobiectc theinve t n b in o p vi a new and useful v:iorm and st u tu a a a m nt andr at cnship 10f part mean o w ich oil i v porizedaan a sup l ed to t apob m ans of a :fan .Qr blowe hes a d oth pbiee and atu e -pi th Mention ahe e na te rmc .iu l d b d nd .e aim d a d a i bur er embod ing m c mentien is s ow h accom anyin draw ng :i which- *Fi ,1 is an e evaticnrothe ih nei' and t m a o su plyin i t ere a F 2 isza sec nztakenzon me 1:cf iie- :Fie- 3 sa sect o akenpn n i3 o F 2; and

i eds nr eyaticn arth in se i n sh win .an'a te netive ip m pi pnstrutiqn- :In he f r of th invention -.shwn:; Eiet e easin s provided-. ie in ral u a inform-and arotary ianis provided in the casing. ,The-axis ofthe :ianis eQCHtIiC1t0 the axis of the casing .l and, at the'lowerside,the casing isconnectee-w -a ub which-has a se i s of pe tu e 4 in onesidth eof ane e e he -s ie of ape re i parall l to' theiiirst r w a d fi eto positions on a =verttica1 line extending approxima e y tra y etwee-the s ective a e tu 44,- r A mix -t e :5 i paral e wit -th ai supp y,tube3 as willbe understoodimoperclearlyin Fig.2.

-Ihe edge ion the .-outer rSide of the tube ;6 is higher than the'edgefl ontheinner side which is below the lower row of apertures 5 so thatairdisvcharging from the tube} passes above the edge 8 :and strikes theopposite =walliof the tube ,6.

This arrangement causes rotation of a portion of the air within the tube6. On its ,ilower side the tubetis-providedwith a trough-like element 9in whichthere is ,a wicking l0. Oil is supplied tothewicking by meansofthe conduit-H which has a manually controlled valve 12 :therein andalso a magnetically actuated :valve in the casing 13.

I .An electric circuit is indicated at l5 andiscon- :nected-with athermostat, and the wires l5 =-ex :tend from-the thermostat to gthezcasing M and wires ifiextend from one side ofsaid casinginto the end ofthe ,tu]ce,6. The .wires 16 have igniter terminals l1 just'aicove theopen end of trough 9 to which oil is deliveredibythe -conduit I 1leading from the source .of oil supply.

Casing 14 houses a high tension transformer h h in e eenn ts :wi sJeane- 1 t asup e ecieee the chambe 11 which term nates 1 ie-h ns on rtn ate it zien t ep e m na he te min ls 1: 42 h e ct c pimp a e ele t9 vh su ac :e t :i-pel. s ch :ee w e eb th vapor a h enu ea e 9 e-Vinn e wbe i n t d y h di heitee 9i aeleetifie a rem the terminals 1;! :of '3 orterminals 11a of Fig- The i n tienei he i within-t c eh S b e nedt theidscha ee pf e ee r ea re "th h e iv l ae nte n le i J.,.hnei. the b y o p1 i sai a eue :t e me ll c peer p said trough which s prope rounded."if-here a be o -er more such .t m a e J7 ee e nnected. The ignitionterminals {I31 are so {arr nged tha theie e tr eh apstensien a tu pa eseth c:, eh I 011 5 s a .r v antoiithe present invenio which me el "RU/12 4419 im th e View- 4 ion.

re e a iy pla e it extends inem h upper nd rearwardiy thereof to preventon from passi therearofthecham- I pil flow s over the right 8 ahdrintoiihe wicking or gin 3, Breferabiy th rea ase es p, .7 -1c e s' 2.flinthe wicking which become heated ithegperation of he burn and tend tosensi ize th oi in the wickilig.

Fiih burne en pertefl th :e i lete 2'' i th form shown in Big. g and inisaidjfrgure is shown en n e t d e neshaped-chambe fil ns lle tures 23in parallel rQWs through which airisldischarged from the-condu 1 andacross the upper s i e 10f afiane i fiief i h? semhei u u h 25 to whichoil is supplied J18 {means of the conduit 26. 1

1n e the o the st e te a 1 Qtm sQ i Jii I :i1I d Qat Q.-i sand 4 the resi attained tha 1r pwsia ess-the flange 8 or .24 i t e espe c tiev t ougd strike the eppesi e id J 91" 1 2, pi i pugn .tigegily aboye :the ,saidflan es. ems-arran eme t'cepsesat eei t w fl and. to pick up N34110:!name ent {the 01 su fac whichis-i iteipy-rtheiterm n is. r 5' Me the:electriccircuit in ith rr-refinefliiii arms 0 'Ph vice.

ThemotorzZ sinieach. oi :themrms shcwnis new nected the :Acurnent:suppjly circuit as indicated in Fig. 1 by means of wires 21 and 28 anda 3 thermostatically controlled switch 29 is positioned in the space tobe heated whereby temperature change in said space either makes orbreaks the circuit. The apparatus therefore functions to maintain apractically constant temperature in the space being heated.

Having described my invention, reference should now be had to the claimswhich follow for determining the scope thereof.

I claim:

1. An oil burner for use in conjunction with a furnace comprising anelongated horizontally arranged tubular element adapted to be positionedwithin the furnace, said tubular element having a series of horizontallyspaced apertures through which air is laterally discharged, a blowerjoined to said element for delivering air thereinto, an elongatedhorizontal trough arranged in parallel horizontally spaced relation tosaid tubular element opposite said apertures, means for supplying oil tosaid trough, said trough being partially cut away along one of itslongitudinal side walls whereby the side wall remote mates from saidtubular element is higher than the side wall closer to said tubularelement, said apertures being horizontally directed with some of themarranged below the level of the outer edge of said trough, wherebystreams of air from said apertures discharge transversely over saidadjacent side wall and some of' said streams of air engage the remoteside wall thereof for deflection towards the fuel in said trough and toproduce a whirling and turbulent flow of air relative to said trough.

2. An oil burner for use in conjunction with a furnace comprising anelongated horizontally arranged tubular element adapted to be positionedwithin the furnace, said tubular element having a series of horizontallyspaced apertures through which air is laterally discharged, a blowerjoined to said element for delivering air thereinto, an elongatedhorizontal trough arranged in parallel horizontally spaced relation tosaid tubular element opposite said apertures, means for supplying oil tosaid trough, said trough being partially cut away along one of itslongitudinal side walls whereby the side wall remote from said tubularelement is higher than the side wall closer to said tubular element,said apertures being horizontally directed with some of them arrangedbelow the level of the outer edge of said trough, whereby streams of airfrom said apertures discharge transversely over said adjacent wall andsome of said streams of air engage the remote side wall thereof fordeflection towards the fuel in said trough and to produce a whirling andturbulent flow of air relative to said trough, a series of heatretaining metal elements positioned in said trough in spaced relation,and oil absorbent means positioned in said trough about said metalelements.

3. An oil burner for use in conjunction with a furnace comprising atubular element adapted to be positioned within the furnace, saidtubular element having in a side wall thereof a series of horizontallyspaced apertures through which air is laterally discharged, a blowerjoined to said element for delivering air thereinto, an oil receivingannular trough surrounding said element with the inneredge of the troughadjacent said tubular element being lower than the outer edge of saidtrough, said apertures being horizontally directed with some of themarranged below the level ofthe outer edge of said trough whereby 4 theair from said apertures discharges transversely over the adjacent sidewall of said trough and operatively engages the remote side wall thereoffor deflection towards the fuel in said trough to produce a whirling andturbulent flow of air relative to said trough and the fuel therein.

4. An oil burner for use in conjunction with a furnace comprising atubular element adapted to be positioned within the furnace, saidtubular element having in a side wall thereof a series of horizontallyspaced apertures through which air' is laterally discharged, a blowerjoined to said element for delivering air thereinto, an oil receivingannular trough surrounding said element with the inner edge of thetrough adjacent saidtubular element being lower than the outer edge ofsaid trough, said apertures being horizontally directed and arrangedbelow the level of theouter edge of said trough whereby the air fromsaid apertures discharges transversely over the adjacent side wall ofsaid trough and operatively engages the remote side wall thereof fordeflection towards the fuel in said trough to produce a whirling andturbulent flow of air relative to said trough and the fuel therein, saidtubular element having a second series of horizontally spacedhorizontally directed apertures arranged above said first series ofapertures, said second series of apertures being arranged above saidouter edge of said trough whereby streams of air pass over the troughlaterally picking up burning gases therefrom and forming the main flameof combustion which is carried outwardly and laterally of said trough.

5. An oil burner comprising a horizontal trough, means for supplying'oil thereinto, a tubular member spaced horizontally from said troughand having in a side wall thereof horizontally spaced apertures facingsaid trough, a blower joined to said tubular member for causing alateral flow of air through said apertures into and across said trough,the edge of the trough adjacent said tubular member being below theplane of the outer edge of said trough, said apertures beinghorizontally directed with some of them arranged below the level of theouter edge of said trough whereby streams of air discharging from saidtubular member are deflected by said outer edge of said trough tocontact the surface of the oil in said trough, some of said apertures insaid tubular member being so arranged that a plurality of streams of airwill project across the outer edge of said trough carrying therewith aportion of the burning gases from within said trough thus forming a mainflame of combustion laterally of said trough. V

6. An oil burner as set out in claim 5, said tubular member being coneshaped, and said trough being annular and surrounding said tubularmember. 3

HERMAN R. HARRIS.

References Cited in the file of this patent UNITED STATES PATENTS France"Oct. 6, 1924

